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fix bug in uword > comparison

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This commit is contained in:
Irmen de Jong 2021-03-18 02:21:21 +01:00
parent b30b8b7368
commit 6780d4f562
1 changed files with 6 additions and 7 deletions
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13
compiler/src/prog8/compiler/target/cpu6502/codegen/ExpressionsAsmGen.kt
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@ -622,16 +622,15 @@ internal class ExpressionsAsmGen(private val program: Program, private val asmge
private fun translateUwordGreaterJump(left: Expression, right: Expression, leftConstVal: NumericLiteralValue?, rightConstVal: NumericLiteralValue?, jumpIfFalseLabel: String) {
// TODO verify correctness uword >
fun code(msbCpyOperand: String, lsbCmpOperand: String) {
asmgen.out("""
cpy $msbCpyOperand
bcs $jumpIfFalseLabel
bcc $jumpIfFalseLabel
bne +
cmp $lsbCmpOperand
bcs $jumpIfFalseLabel
+""")
bcc $jumpIfFalseLabel
+ beq $jumpIfFalseLabel
""")
}
if(rightConstVal!=null) {
@ -662,8 +661,8 @@ internal class ExpressionsAsmGen(private val program: Program, private val asmge
return code("$varname+1", varname)
}
asmgen.assignExpressionToVariable(left, "P8ZP_SCRATCH_W2", DataType.UWORD, null)
asmgen.assignExpressionToRegister(right, RegisterOrPair.AY)
asmgen.assignExpressionToVariable(right, "P8ZP_SCRATCH_W2", DataType.UWORD, null)
asmgen.assignExpressionToRegister(left, RegisterOrPair.AY)
return code("P8ZP_SCRATCH_W2+1", "P8ZP_SCRATCH_W2")
}